Washbasin



FIG. 1 is a perspective view of a washbasin showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof, opposite that of FIG. 2;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a side elevational view thereof, opposite that of FIG. 4; and,

FIG. 6 is a top view thereof.

The broken lines shown in the drawings illustrate portions of the washbasin that form no part of the claimed design. 

CLAIM The ornamental design for a washbasin, as shown and described. 